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r <br /> 20 June 2005 <br /> . AGE-NC Project No 05-1306 <br /> ' Page 6 of S <br /> shoring have been emplaced <br /> 4 2 2 Soil Sampling <br /> ' Soil for laboratory analysis will be collected from the base and sidewalls of the excavation using the <br /> bucket of the excavator Afterwards, a soil sample will be collected from the excavator bucket using <br /> a AMS metric soil'samplmg hammer equipt with two 2-mch by 3-mch diameter brass sleeve The <br /> exposed ends of the lead brass sleeve will be covered with Teflon sheets,capped and sealed with tape <br /> Soil samples will be collected from soil stockpiles by digging approximately one foot into the soil <br /> stockpile Soil samples will be collected by hand sampling methods using a stainless steel or carbon <br /> steel trowel,by pressing the metric soil sampling hammer and sample sleeve assembly into the soil <br /> ' stockpile <br /> Following sample collection,each sample sleeve will be labeled with the boring location,depth,time, <br /> date and sampler's Initials Appropriately sealed and labeled samples will be placed in a chilled <br /> container under ice and transported under chain-of-custody procedure to a DHS-certified laboratory <br /> 4 2 3 Excavation Backfilling <br /> The excavation will be backfilled with overburden and clean fill material from a local source The <br /> excavation will be backfilled and compacted in five-foot lifts from the floor of the excavation to 10 <br /> ' feet bsg, one-foot lifts will be utilized to a depth of 10 feet bsg <br /> ' 4 2 4 Equipment Decontamination <br /> All sampling tools used for sample collection will be thoroughly washed with a solution of Alconox <br /> and rinsed with clean water prior to each sampling location <br /> ' 4 3 GROUND WATER DEWATERING (EXTRACTION) PROCEDURES <br /> Section 4 3 lists procedures for ground water extraction, analysis of extracted ground water and <br /> ground water disposal <br /> ' Advanced GeoEnvironmental,Inc <br /> I ' , <br />